GM_ProjectPointToECEF – Global Mapper

Global Mapper SDK

Projects a point to ECEF (earth-centered earth-fixed) coordinates referenced to some datum (normally WGS84) from coordinates in some projection.

This function is deprecated. The introduction of GeoCalc mode has made this function's behavior with non legacy DATUM undefined.

Syntax

C++

Copy

GM_DLL_EXPORTED GM_Error_t32 __stdcall GM_ProjectPointToECEF
(
double                  aXIn,       // IN: X coordinate of input point
double                  aYIn,       // IN: Y coordinate of input point
double                  aZIn,       // IN: Z coordinate of input point (meters above ellipsoid), usually 0
double*                 aX,         // OUT: ECEF X coordinate of input
double*                 aY,         // OUT: ECEF Y coordinate of input
double*                 aZ,         // OUT: ECEF Z coordinate of input
DATUM                   aDatum,     // IN: datum for ECEF conversion (normally GM_DATUM_WGS_84)
const GM_Projection_t*  aProjIn     // IN: projection of input point (NULL for current projection)
)